Drilling-machine.



f No. 736,284. PATENTED AUG. 11, 19.03, AMARBK.

Y DRILLING MACHINE.

, APPLIoATIoN FILED AUG. 9, 1902. 4 No lonnt..1

2 SHEETS-SHEET 1.

ete. 736,234. j

Patented August 1 1, 1903.

Errea.

wrimarra* ALNOIS MAREK, OF KALONA, IOWA.

DRlLLING-MACHINE.

SPECIFICATION forming part of Letters Patent NO. 736,284, dated August 11, 1903.-

Appncauo'n strangest 9. 1902. serial No. 119,110. (No maar) To all whom t may cor/2.00pm:r

Be it known that I, ALoIs MAREK, a citizen of the United States, residing at Kalona, in

j vation, partly in section.

the county of Washington and State of Iowa, have invented a new and useful Drilling-Ma chine, 0f which the followingis aspecication.

My invention relates to a drill especially adapted for use in railway construction and repair, but which can also be used for drill-` ing rivet-holes in steel beams intended for use in the construction of houses and bridges.

One of the objects of my' invention is to produce a portable drill light enough to be readily transported oh a hand-car from place to place by a track gang, and another object is to produce a drill that can be placed on the.

track between the rails whereby the drilling can be done from the inside of the rail when it would be inconvenient to work from the outside-as, for example, on bridges-and still another object is to provide a drill which does not require clamping to the ground and which is simple in construction and operation.

' In the drawings, Figure l is a perspective view of the drill and frame. Fig. 2 is an end view in elevation, partly in section and about.

away near one end atv A2 and a recess A2'` formed, which opens into the cut-away portion forming a rearwardly-projecting flange A4. The two beams being placed parallel to each other, blocks A5 are placed across them, the ends `of these blocks `resting in suitable `sockets or grooves A6, formed ou the beams A. Resting on these blocks and being positionedabove and parallel to the ground-beams A are the beams B, terminating above the rearof the cut-away portion A2 and having their forward ends bifurcated. Arms B' are pivoted between the bifurcated ends of the beams, each arm having a hook member B2 'resting above the flanges A4.

formed on its freeV end, said hook members Secured tothe beams B by suitable bolts and nuts C is the casing A', which carries the gears. Centrally jourualed in the upper part of the frame and projecting rearwardly from it is a stub-shaft D, carrying at its rear end acrank D', and intermediate the crank and the frame a gear D2, meshing with a lower gear D2, mounted on a similar stub-shaft D4. At one side of the upper gear a shaft D5 passes through the frame, carrying on one end a fiy-wheel D6 and on the opposite end theidlerD7, meshing with the gear D2.` It is understood, of course, that these gears can be arranged and mounted in any suitable manner.

The drills E have Shanks, either diamondshaped or square in cross-section, and bearing against theinnerends of these drill-Shanks are the feed-screws E, operating through a sleeve G. The drills may be pointed in any preferred manner. Bearings F are formed transversely through the forward blocks A5, the bearings in one block registering with those in the other, and in these bearings are secured the sleeves F', outwardly rounded but interiorly of a diamond or square shape to conform tothedrill-shank. Rigidlymounted upon the rear end of the sleeves are the gears F2, each meshing with the gear D2. A collar F2 surrounds the sleeve between the two forward blocks, serving both as a support for the sleeve and to brace the blocks. An in- `teriorlythreaded sleeve G is non-revolubly secured inthe rear blocks, said sleeves having at their inner ends an integral outwardlyturned fiange G', which is horizontally elongated to form side arms, which are `countersunk at G2 to receive suitable bolts, and the block is suitably recessed, so that the arms will lie Hush with the side ofthe block, as

-shown in Fig. l.

In operation the frameA is placed adjacent the rail to be drilled, (indicated ,in Fig. 3 at II,) the part A2 being passed under the rail between the cross-ties and the flange ALL engaging the upper surface of the base of the rail. The blocks are placed in position `and the beams B placed thereon, the hooks B2 engaging the tread of the rail. The frame D being bolted to the beams B is placed in position at the same time. Theframeis nowfirmly held IOO against movement to or from the rail. The drills are then placed in the sleeve F', and the feed-screw E being turned the drill is forced against the rail. The crank D' being turned the sleeves F rotate With the gears F2 and impart rotatory movement to the drill, the point of which can be kept in contact with the rail by means of the feed-screw.

Having thus described my invention,what I claim as new, and desire to secure by Letters Patent, is-

In adri1lingmacl1ine,the combination with base-beams shaped to engage the base of a rail and having sockets formed in their upof the rail, drills journ aled in the cross-blocks,

and means for actuating the drills.

ALOIS MAREK.

Witnesses:

CALVIN GRADY, LEVI RANDEL. 

